chore: adicionar .gitignore e LICENSE

- .gitignore: Python, Docker, IDE e arquivos temporários
- LICENSE: MIT License

Código limpo e pronto para produção.

.gitignore

@@ -0,0 +1,61 @@
+# Environment variables
+.env
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual environments
+venv/
+ENV/
+env/
+.venv
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Docker
+*.pid
+*.seed
+*.pid.lock
+
+# Logs
+*.log
+logs/
+
+# Model downloads
+models/*.gguf
+*.gguf
+
+# Jupyter
+.ipynb_checkpoints/
+
+# Temporary files
+temp
+*.tmp